Improvement in hanging cultivator-teeth



FOWLER & BACON.

Gultivator- -Teeth.

Patented Mar 28, 1865.l

QZ/ 459W@ UNITED STATES PATENT OFFICE.

JOSEPH FOWLER AND F. M. BACON, OF VVATERTOWN, WISCONSIN.

IMPROVEMENT IN HANGING CULTIVATOR-TEETH.

Specification forming part of Letters Patent No. 47,008, dated `Marcl128, 1865.

To all whom fit may concern:

Be it known that we, JOSEPH FOWLER and F. M. BACON, ot' Watertown, inthe county of VJefferson and State ot' lfiscoilsin, haveinventvater-tooth. Fig. 2 is a front view ofthe same,

and Fig. 3 is a section vertically through the tooth and jaw.

Similar marks of reference denote the same parts.

The nature of our said invention consistsin a jaw receiving the upperend ofthe cultivatortooth, and having quadrant bearings for shoulders onthe sides ot' the tooth, combined with a tapering pin or analogousdevice to draw the shoulders on the tooth rrnly against the quadrantbearings of the jaw, so as to retain the tooth in a vertical or in aninclined position, adapted to the particular use to which said tooth isapplied, and it said cultivator-'tooth comes in contact with a stone,root, or `other obstruction not easily removed, the shoulders slide onthe quadrant bearings, and the point of the tooth drags back and slidesover such obstruction without being broken or injured, and is easilymoved back to its place and retained as before bythe friction of itsshoulders against the quadrant. bearings.

In the drawings, a represents part ot' a bar or other device to whichthe cultivator-tooth is to be applied.

b is a divided jaw attached at l l to the bar a, and formed withquadrant bearings 2 2, between which the stock 3 of the tooth opasses.

4 4 are shoulders on this tooth-stock at the surfaces of the quadrantbearings, and 5 is a. tapering pin, which, when driven in, binds theshoulders 4 4 against the surfaces of the quadrant bearings 2 2, andholds the cultivator-tooth in any position where it may be placed.

It will be understood that this tapering pin acts as a wedge against theupper side ot' the hole in the stock 3, andthe undue sides of the holesin the jaw b, and when undue strain comes upon the tooth in consequenceot' its taking a stump, root, stone, or other obstacle, the frictionbetween the surfaces ot' the quadrant bearings andthe shoulders 4 4 isovercome and the tooth yields, drawing backward and upward and passingover the obstruction.

The eultivator-tooth itself may be of any desired character, and thewhole employed with any usual frame or apparatus, by which the tooth isheld while being moved overthe ground to act, as before specified; andit will be evideut that the friction between the shonlders4 4, andquadrant bearings 2 2 may be obtained by a set-nut applied to an eye orjaw carrying the center-pin 5 of the tooth c, or any analogous means maybe employed instead ot' the tapering piu 5.

What we claim, and desire to secure by Letters Patent, is-

' Retaining the cultivator-tooth by friction against a quadrant bearing,substantially as specified, so that the said tooth can be in a verticalor in an inclined position, and will yield to obstacles without injuryto the tooth, as specied.

In Witness whereof we have hereunto set our signatures this 15th day ofJuly, 1864.

JOSEPH FOWLER. F. M. BACON.

Witnesses:

CHARLES M. DUoAss. HENRY P. SEIBEL.

